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authorQt Continuous Integration System <qt-info@nokia.com>2010-07-16 01:06:57 (GMT)
committerQt Continuous Integration System <qt-info@nokia.com>2010-07-16 01:06:57 (GMT)
commit6986f382c8d7b49342f47fe00445685945157187 (patch)
treebbe4a94dc06b4ffb83aa248183da7a1773c38cab
parent6e2c3e7306883cd4618742e37861e326e9c91895 (diff)
parent368dec26e5dccd6bbaf4f485180bc2ce47294953 (diff)
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Merge branch '4.7' of scm.dev.nokia.troll.no:qt/qt-qml into 4.7-integration
* '4.7' of scm.dev.nokia.troll.no:qt/qt-qml: Fix .pro file Add files missing from last commit fix doc link Add chapter on creating list property types fix spelling Change tutorial from using "Musician" etc. types to using "PieChart" Text element does not clip even with clip=true
-rw-r--r--doc/src/declarative/extending-tutorial.qdoc328
-rw-r--r--doc/src/declarative/pics/extending-tutorial-chapter1.pngbin0 -> 6687 bytes
-rw-r--r--doc/src/declarative/pics/extending-tutorial-chapter2.pngbin0 -> 7318 bytes
-rw-r--r--doc/src/declarative/pics/extending-tutorial-chapter3.pngbin0 -> 8145 bytes
-rw-r--r--doc/src/declarative/pics/extending-tutorial-chapter5.pngbin0 -> 5557 bytes
-rw-r--r--examples/declarative/tutorials/extending/chapter1-basics/app.qml18
-rw-r--r--examples/declarative/tutorials/extending/chapter1-basics/chapter1-basics.pro4
-rw-r--r--examples/declarative/tutorials/extending/chapter1-basics/main.cpp4
-rw-r--r--examples/declarative/tutorials/extending/chapter1-basics/piechart.cpp81
-rw-r--r--examples/declarative/tutorials/extending/chapter1-basics/piechart.h (renamed from examples/declarative/tutorials/extending/chapter1-basics/musician.h)21
-rw-r--r--examples/declarative/tutorials/extending/chapter2-methods/app.qml24
-rw-r--r--examples/declarative/tutorials/extending/chapter2-methods/chapter2-methods.pro4
-rw-r--r--examples/declarative/tutorials/extending/chapter2-methods/main.cpp4
-rw-r--r--examples/declarative/tutorials/extending/chapter2-methods/piechart.cpp87
-rw-r--r--examples/declarative/tutorials/extending/chapter2-methods/piechart.h (renamed from examples/declarative/tutorials/extending/chapter3-bindings/musician.h)26
-rw-r--r--examples/declarative/tutorials/extending/chapter3-bindings/app.qml42
-rw-r--r--examples/declarative/tutorials/extending/chapter3-bindings/chapter3-bindings.pro4
-rw-r--r--examples/declarative/tutorials/extending/chapter3-bindings/main.cpp4
-rw-r--r--examples/declarative/tutorials/extending/chapter3-bindings/piechart.cpp89
-rw-r--r--examples/declarative/tutorials/extending/chapter3-bindings/piechart.h84
-rw-r--r--examples/declarative/tutorials/extending/chapter4-customPropertyTypes/app.qml18
-rw-r--r--examples/declarative/tutorials/extending/chapter4-customPropertyTypes/chapter4-customPropertyTypes.pro8
-rw-r--r--examples/declarative/tutorials/extending/chapter4-customPropertyTypes/instrument.cpp56
-rw-r--r--examples/declarative/tutorials/extending/chapter4-customPropertyTypes/main.cpp8
-rw-r--r--examples/declarative/tutorials/extending/chapter4-customPropertyTypes/piechart.cpp (renamed from examples/declarative/tutorials/extending/chapter2-methods/musician.cpp)30
-rw-r--r--examples/declarative/tutorials/extending/chapter4-customPropertyTypes/piechart.h (renamed from examples/declarative/tutorials/extending/chapter4-customPropertyTypes/musician.h)20
-rw-r--r--examples/declarative/tutorials/extending/chapter4-customPropertyTypes/pieslice.cpp68
-rw-r--r--examples/declarative/tutorials/extending/chapter4-customPropertyTypes/pieslice.h (renamed from examples/declarative/tutorials/extending/chapter4-customPropertyTypes/instrument.h)21
-rw-r--r--examples/declarative/tutorials/extending/chapter5-listproperties/app.qml70
-rw-r--r--examples/declarative/tutorials/extending/chapter5-listproperties/chapter5-listproperties.pro7
-rw-r--r--examples/declarative/tutorials/extending/chapter5-listproperties/main.cpp (renamed from examples/declarative/tutorials/extending/chapter1-basics/musician.cpp)34
-rw-r--r--examples/declarative/tutorials/extending/chapter5-listproperties/piechart.cpp (renamed from examples/declarative/tutorials/extending/chapter3-bindings/musician.cpp)32
-rw-r--r--examples/declarative/tutorials/extending/chapter5-listproperties/piechart.h (renamed from examples/declarative/tutorials/extending/chapter2-methods/musician.h)34
-rw-r--r--examples/declarative/tutorials/extending/chapter5-listproperties/pieslice.cpp88
-rw-r--r--examples/declarative/tutorials/extending/chapter5-listproperties/pieslice.h76
-rw-r--r--examples/declarative/tutorials/extending/chapter5-plugins/instrument.cpp56
-rw-r--r--examples/declarative/tutorials/extending/chapter5-plugins/instrument.h61
-rw-r--r--examples/declarative/tutorials/extending/chapter5-plugins/musician.cpp67
-rw-r--r--examples/declarative/tutorials/extending/chapter5-plugins/qmldir1
-rw-r--r--examples/declarative/tutorials/extending/chapter6-plugins/app.qml (renamed from examples/declarative/tutorials/extending/chapter5-plugins/app.qml)29
-rw-r--r--examples/declarative/tutorials/extending/chapter6-plugins/chapter6-plugins.pro (renamed from examples/declarative/tutorials/extending/chapter5-plugins/chapter5-plugins.pro)12
-rw-r--r--examples/declarative/tutorials/extending/chapter6-plugins/chartsplugin.cpp (renamed from examples/declarative/tutorials/extending/chapter5-plugins/musicplugin.cpp)14
-rw-r--r--examples/declarative/tutorials/extending/chapter6-plugins/chartsplugin.h (renamed from examples/declarative/tutorials/extending/chapter5-plugins/musicplugin.h)6
-rw-r--r--examples/declarative/tutorials/extending/chapter6-plugins/piechart.cpp (renamed from examples/declarative/tutorials/extending/chapter4-customPropertyTypes/musician.cpp)24
-rw-r--r--examples/declarative/tutorials/extending/chapter6-plugins/piechart.h (renamed from examples/declarative/tutorials/extending/chapter5-plugins/musician.h)21
-rw-r--r--examples/declarative/tutorials/extending/chapter6-plugins/pieslice.cpp88
-rw-r--r--examples/declarative/tutorials/extending/chapter6-plugins/pieslice.h74
-rw-r--r--examples/declarative/tutorials/extending/chapter6-plugins/qmldir1
-rw-r--r--examples/declarative/tutorials/extending/extending.pro3
-rw-r--r--src/declarative/graphicsitems/qdeclarativeitem.cpp2
-rw-r--r--src/declarative/graphicsitems/qdeclarativelistview.cpp2
-rw-r--r--src/declarative/graphicsitems/qdeclarativetext.cpp20
-rw-r--r--src/declarative/qml/qdeclarativelist.cpp2
53 files changed, 1282 insertions, 595 deletions
diff --git a/doc/src/declarative/extending-tutorial.qdoc b/doc/src/declarative/extending-tutorial.qdoc
index 2cf00b9..cc93e86 100644
--- a/doc/src/declarative/extending-tutorial.qdoc
+++ b/doc/src/declarative/extending-tutorial.qdoc
@@ -48,8 +48,9 @@ Tutorial chapters:
\o \l{declarative/tutorials/extending/chapter2-methods}{Connecting to C++ Methods and Signals}
\o \l{declarative/tutorials/extending/chapter3-bindings}{Adding Property Bindings}
\o \l{declarative/tutorials/extending/chapter4-customPropertyTypes}{Using Custom Property Types}
-\o \l{declarative/tutorials/extending/chapter5-plugins}{Writing an Extension Plugin}
-\o \l{qml-extending-tutorial6.html}{In Summary}
+\o \l{declarative/tutorials/extending/chapter5-listproperties}{Using List Property Types}
+\o \l{declarative/tutorials/extending/chapter6-plugins}{Writing an Extension Plugin}
+\o \l{qml-extending-tutorial7.html}{In Summary}
\endlist
*/
@@ -59,61 +60,94 @@ Tutorial chapters:
\example declarative/tutorials/extending/chapter1-basics
-Let's create a new QML type called "Musician" that has two properties: a name
-and an instrument. We will make it available in a \l {Modules}{module} called "Music", with
+A common task when extending QML is to provide a new QML type that supports some
+ custom functionality beyond what is provided by the built-in \l {QML Elements}.
+For example, this could be done to implement particular data models, or provide
+elements with custom painting and drawing capabilities, or access system features
+like network programming that are not accessible through built-in QML features.
+
+In this tutorial, we will show how to use the C++ classes in the QtDeclarative
+module to extend QML. The end result will be a simple Pie Chart display implemented by
+several custom QML types connected together through QML features like bindings and
+signals, and made available to the QML runtime through a plugin.
+
+To begin with, let's create a new QML type called "PieChart" that has two properties: a name
+and a color. We will make it available in a \l {Modules}{module} called "Charts", with
a module version of 1.0.
-We want this \c Musician type to be usable from QML like this:
+
+We want this \c PieChart type to be usable from QML like this:
\code
- import Music 1.0
+ import Charts 1.0
- Musician {
- name: "Reddy the Rocker"
- instrument: "Guitar"
+ PieChart {
+ width: 100; height: 100
+ name: "A simple pie chart"
+ color: "red"
}
\endcode
-To do this, we need a C++ class that encapsulates this \c Musician type and its two
-properties. Since QML relies heavily on Qt's \l{Meta-Object System}{meta object system},
+To do this, we need a C++ class that encapsulates this \c PieChart type and its two
+properties. Since QML makes extensive use of Qt's \l{Meta-Object System}{meta object system},
this new class must:
\list
-\o inherit from QObject
-\o declare its properties using the Q_PROPERTY() macro
+\o Inherit from QObject
+\o Declare its properties using the Q_PROPERTY macro
\endlist
-Here is our \c Musician class, defined in \c musician.h:
+Here is our \c PieChart class, defined in \c piechart.h:
-\snippet declarative/tutorials/extending/chapter1-basics/musician.h 0
+\snippet declarative/tutorials/extending/chapter1-basics/piechart.h 0
-It defines the two properties, \c name and \c instrument, with the Q_PROPERTY() macro.
-The class implementation in \c musician.cpp simply sets and returns the \c m_name and
-\c m_instrument values as appropriate.
+The class inherits from QDeclarativeItem because we want to override
+QDeclarativeItem::paint() in order to draw. If the class just represented some
+data type and was not an item that actually needed to be displayed, it could simply inherit
+from QObject. Or, if we want to extend the functionality of an existing QObject-based
+class, it could inherit from that class instead.
-Our QML file, \c app.qml, creates a \c Musician item and display the musician's details
+The \c PieChart class defines the two properties, \c name and \c color, with the Q_PROPERTY macro,
+and overrides QDeclarativeItem::paint(). The class implementation in \c piechart.cpp
+simply sets and returns the \c m_name and \c m_color values as appropriate, and
+implements \c paint() to draw a simple pie chart. It also turns off the
+QGraphicsItem::ItemHasNoContents flag to enable painting:
+
+\snippet declarative/tutorials/extending/chapter1-basics/piechart.cpp 0
+\dots 0
+\snippet declarative/tutorials/extending/chapter1-basics/piechart.cpp 1
+
+Now that we have defined the \c PieChart type, we will use it from QML. The \c app.qml
+file creates a \c PieChart item and display the pie chart's details
using a standard QML \l Text item:
\snippet declarative/tutorials/extending/chapter1-basics/app.qml 0
+Notice that although the color is specified as a string in QML, it is automatically
+converted to a QColor object for the PieChart \c color property. Automatic conversions are
+provided for various other \l {QML Basic Types}{basic types}; for example, a string
+like "640x480" can be automatically converted to a QSize value.
+
We'll also create a C++ application that uses a QDeclarativeView to run and
-display \c app.qml. The application must register the \c Musician type
+display \c app.qml. The application must register the \c PieChart type
using the qmlRegisterType() function, to allow it to be used from QML. If
-you don't register the type, \c app.qml won't be able to create a \c Musician.
+you don't register the type, \c app.qml won't be able to create a \c PieChart.
Here is the application \c main.cpp:
\snippet declarative/tutorials/extending/chapter1-basics/main.cpp 0
-This call to qmlRegisterType() registers the \c Musician type as a type called "Musician", in a module named "Music",
+This call to qmlRegisterType() registers the \c PieChart type as a type called "PieChart", in a module named "Charts",
with a module version of 1.0.
Lastly, we write a \c .pro project file that includes the files and the \c declarative library:
\quotefile declarative/tutorials/extending/chapter1-basics/chapter1-basics.pro
-Now we can build and run the application. Try it yourself with the code in Qt's \c examples/tutorials/extending/chapter1-basics directory.
+Now we can build and run the application:
-\example declarative/tutorials/extending/chapter1-basics
+\image extending-tutorial-chapter1.png
+
+Try it yourself with the code in Qt's \c examples/tutorials/extending/chapter1-basics directory.
At the moment, the \c app.qml is run from within a C++ application.
This may seem odd if you're used to running QML files with the \l {QML Viewer}.
@@ -128,39 +162,40 @@ Later on, we'll show how to create a plugin so that you can run \c app.qml using
\example declarative/tutorials/extending/chapter2-methods
-Suppose we want \c Musician to have a "perform" method that prints a message
-to the console and then emits a "performanceEnded" signal.
-Other elements would be able to call \c perform() and receive
-\c performanceEnded() signals like this:
+Suppose we want \c PieChart to have a "clearChart()" method that erases the
+chart and then emits a "chartCleared" signal. Our \c app.qml would be able
+to call \c clearChart() and receive \c chartCleared() signals like this:
\snippet declarative/tutorials/extending/chapter2-methods/app.qml 0
-To do this, we add a \c perform() method and a \c performanceEnded() signal
+\image extending-tutorial-chapter2.png
+
+To do this, we add a \c clearChart() method and a \c chartCleared() signal
to our C++ class:
-\snippet declarative/tutorials/extending/chapter2-methods/musician.h 0
+\snippet declarative/tutorials/extending/chapter2-methods/piechart.h 0
\dots
-\snippet declarative/tutorials/extending/chapter2-methods/musician.h 1
+\snippet declarative/tutorials/extending/chapter2-methods/piechart.h 1
\dots
-\snippet declarative/tutorials/extending/chapter2-methods/musician.h 2
+\snippet declarative/tutorials/extending/chapter2-methods/piechart.h 2
\dots
-\snippet declarative/tutorials/extending/chapter2-methods/musician.h 3
+\snippet declarative/tutorials/extending/chapter2-methods/piechart.h 3
-The use of Q_INVOKABLE makes the \c perform() method available to the
+The use of Q_INVOKABLE makes the \c clearChart() method available to the
Qt Meta-Object system, and in turn, to QML. Note that it could have
been declared as as a Qt slot instead of using Q_INVOKABLE, as
slots are also callable from QML. Both of these approaches are valid.
-The \c perform() method simply prints a message to the console and
-then emits \c performanceEnded():
+The \c clearChart() method simply changes the color to Qt::transparent,
+repaints the chart, then emits the \c chartCleared() signal:
-\snippet declarative/tutorials/extending/chapter2-methods/musician.cpp 0
+\snippet declarative/tutorials/extending/chapter2-methods/piechart.cpp 0
-Now when we run the application and click the window, the application outputs:
+Now when we run the application and click the window, the pie chart
+disappears, and the application outputs:
\code
- "Reddy the Rocker" is playing the "Guitar"
- The performance has now ended
+ The chart has been cleared
\endcode
Try out the example yourself with the updated code in Qt's \c examples/tutorials/extending/chapter2-methods directory.
@@ -174,45 +209,49 @@ Try out the example yourself with the updated code in Qt's \c examples/tutorials
Property bindings is a powerful feature of QML that allows values of different
elements to be synchronized automatically. It uses signals to notify and update
-other elements' values when property values change.
+other elements' values when property values are changed.
-Let's enable property bindings for the \c instrument property. That means
+Let's enable property bindings for the \c color property. That means
if we have code like this:
\snippet declarative/tutorials/extending/chapter3-bindings/app.qml 0
-The "instrument: reddy.instrument" statement binds the \c instrument value of
-\c craig to the \c instrument of \c reddy.
-Whenever \c reddy's \c instrument value changes, \c craig's \c instrument value
-updates to the same value. When the window is clicked, the application outputs:
+\image extending-tutorial-chapter3.png
-\code
- "Reddy the Rocker" is playing the "Guitar"
- "Craig the Copycat" is playing the "Guitar"
- "Reddy the Rocker" is playing the "Drums"
- "Craig the Copycat" is playing the "Drums"
-\endcode
+The "color: chartA.color" statement binds the \c color value of
+\c chartB to the \c color of \c chartA.
+Whenever \c chartA's \c color value changes, \c chartB's \c color value
+updates to the same value. When the window is clicked, the \c onClicked
+handler in the MouseArea changes the color of \c chartA, thereby changing
+both charts to the color blue.
-It's easy to enable property binding for the \c instrument property.
-We add a \l{Qt's Property System}{NOTIFY} feature to its Q_PROPERTY() declaration to indicate that a "instrumentChanged" signal
+It's easy to enable property binding for the \c color property.
+We add a \l{Qt's Property System}{NOTIFY} feature to its Q_PROPERTY() declaration to indicate that a "colorChanged" signal
is emitted whenever the value changes.
-\snippet declarative/tutorials/extending/chapter3-bindings/musician.h 0
+\snippet declarative/tutorials/extending/chapter3-bindings/piechart.h 0
\dots
-\snippet declarative/tutorials/extending/chapter3-bindings/musician.h 1
+\snippet declarative/tutorials/extending/chapter3-bindings/piechart.h 1
\dots
-\snippet declarative/tutorials/extending/chapter3-bindings/musician.h 2
+\snippet declarative/tutorials/extending/chapter3-bindings/piechart.h 2
\dots
-\snippet declarative/tutorials/extending/chapter3-bindings/musician.h 3
+\snippet declarative/tutorials/extending/chapter3-bindings/piechart.h 3
-Then, we emit this signal in \c setInstrument():
+Then, we emit this signal in \c setPieSlice():
-\snippet declarative/tutorials/extending/chapter3-bindings/musician.cpp 0
+\snippet declarative/tutorials/extending/chapter3-bindings/piechart.cpp 0
-It's important for \c setInstrument() to check that the instrument value has actually changed
-before emitting \c instrumentChanged(). This ensures the signal is not emitted unnecessarily and
+It's important for \c setColor() to check that the color value has actually changed
+before emitting \c colorChanged(). This ensures the signal is not emitted unnecessarily and
also prevents loops when other elements respond to the value change.
+The use of bindings is essential to QML. You should always add NOTIFY
+signals for properties if they are able to be implemented, so that your
+properties can be used in bindings. Properties that cannot be bound cannot be
+automatically updated and cannot be used as flexibly in QML. Also, since
+bindings are invoked so often and relied upon in QML usage, users of your
+custom QML types may see unexpected behavior if bindings are not implemented.
+
*/
/*!
@@ -220,19 +259,19 @@ also prevents loops when other elements respond to the value change.
\example declarative/tutorials/extending/chapter4-customPropertyTypes
-The \c Musician type currently has two properties that are both strings.
-It could have all sorts of other properties. For example, we could add an
-integer-type property to store the age of each musician:
+The \c PieChart type currently has a string-type property and a color-type property.
+It could have many other types of properties. For example, we could add an
+integer-type property to store an identifier for each pie chart:
\code
- class Musician : public QObject
+ class PieChart : public QDeclarativeItem
{
...
- Q_PROPERTY(int age READ age WRITE setAge)
+ Q_PROPERTY(int id READ id WRITE setId)
public:
...
- int age() const;
- void setAge(int age);
+ int id() const;
+ void setId(int id);
...
};
\endcode
@@ -257,31 +296,39 @@ types:
If we want to create a property whose type is not supported by QML by default,
we need to register the type with QML.
-For example, let's change the type of the \c instrument property from a string to a
-new type called "Instrument". Instead of assigning a string value to \c instrument,
-we assign an \c Instrument value:
+For example, let's replace the use of the \c property with a type called
+"PieSlice" that has a \c color property. Instead of assigning a color,
+we assign an \c PieSlice value which itself contains a \c color:
\snippet declarative/tutorials/extending/chapter4-customPropertyTypes/app.qml 0
-Like \c Musician, this new \c Instrument type has to inherit from QObject and declare
+Like \c PieChart, this new \c PieSlice type inherits from QDeclarativeItem and declares
its properties with Q_PROPERTY():
-\snippet declarative/tutorials/extending/chapter4-customPropertyTypes/instrument.h 0
+\snippet declarative/tutorials/extending/chapter4-customPropertyTypes/pieslice.h 0
-To use it from \c Musician, we modify the \c instrument property declaration
+To use it in \c PieChart, we modify the \c color property declaration
and associated method signatures:
-\snippet declarative/tutorials/extending/chapter4-customPropertyTypes/musician.h 0
+\snippet declarative/tutorials/extending/chapter4-customPropertyTypes/piechart.h 0
\dots
-\snippet declarative/tutorials/extending/chapter4-customPropertyTypes/musician.h 1
+\snippet declarative/tutorials/extending/chapter4-customPropertyTypes/piechart.h 1
\dots
-\snippet declarative/tutorials/extending/chapter4-customPropertyTypes/musician.h 2
+\snippet declarative/tutorials/extending/chapter4-customPropertyTypes/piechart.h 2
\dots
-\snippet declarative/tutorials/extending/chapter4-customPropertyTypes/musician.h 3
+\snippet declarative/tutorials/extending/chapter4-customPropertyTypes/piechart.h 3
+
+There is one thing to be aware of when implementing \c setPieSlice(). The \c PieSlice
+is a visual item, so it must be set as a child of the \c PieChart using
+QDeclarativeItem::setParentItem() so that the \c PieChart knows to paint this child
+item when its contents are drawn:
+
+\snippet declarative/tutorials/extending/chapter4-customPropertyTypes/piechart.cpp 0
-Like the \c Musician type, the \c Instrument type has to be registered
-using qmlRegisterType() to be used from QML. As with \c Musician, we'll add the
-type to the "Music" module, version 1.0:
+
+Like the \c PieChart type, the \c PieSlice type has to be registered
+using qmlRegisterType() to be used from QML. As with \c PieChart, we'll add the
+type to the "Charts" module, version 1.0:
\snippet declarative/tutorials/extending/chapter4-customPropertyTypes/main.cpp 0
\dots
@@ -293,15 +340,65 @@ Try it out with the code in Qt's \c examples/tutorials/extending/chapter4-custom
*/
+
/*!
-\title Chapter 5: Writing an Extension Plugin
+\title Chapter 5: Using List Property Types
-\example declarative/tutorials/extending/chapter5-plugins
+\example declarative/tutorials/extending/chapter5-listproperties
-Currently the \c Musician and \c Instrument types are used by \c app.qml,
+Right now, a \c PieChart can only have one \c PieSlice. Ideally a chart would
+have multiple slices, with different colors and sizes. To do this, we could
+have a \c slices property that accepts a list of \c PieSlice items:
+
+\snippet declarative/tutorials/extending/chapter5-listproperties/app.qml 0
+
+\image extending-tutorial-chapter5.png
+
+To do this, we replace the \c pieSlice property in \c PieChart with a \c slices property,
+declared as a QDeclarativeListProperty type. The QDeclarativeListProperty class enables the
+creation of list properties in QML extensions. We replace the \c pieSlice()
+function with a \c slices() function that returns a list of slices, and add
+an internal \c append_slice() function (discussed below). We also use a QList to
+store the internal list of slices as \c m_slices:
+
+\snippet declarative/tutorials/extending/chapter5-listproperties/piechart.h 0
+\dots
+\snippet declarative/tutorials/extending/chapter5-listproperties/piechart.h 1
+\dots
+\snippet declarative/tutorials/extending/chapter5-listproperties/piechart.h 2
+
+Although the \c slices property does not have an associated \c WRITE function,
+it is still modifiable because of the way QDeclarativeListProperty works.
+In the \c PieChart implementation, we implement \c PieChart::slices() to
+return a QDeclarativeListProperty value and indicate that the internal
+\c PieChart::append_slice() function is to be called whenever a request is made from QML
+to add items to the list:
+
+\snippet declarative/tutorials/extending/chapter5-listproperties/piechart.cpp 0
+
+The \c append_slice() function simply sets the parent item as before,
+and adds the new item to the \c m_slices list. As you can see, the append function for a
+QDeclarativeListProperty is called with two arguments: the list property, and
+the item that is to be appended.
+
+The \c PieSlice class has also been modified to include \c fromAngle and \c angleSpan
+properties and to draw the slice according to these values. This is a straightforward
+modification if you have read the previous pages in this tutorial, so the code is not shown here.
+
+The complete code can be seen in the updated \c examples/tutorials/extending/chapter5-listproperties directory.
+
+*/
+
+
+/*!
+\title Chapter 6: Writing an Extension Plugin
+
+\example declarative/tutorials/extending/chapter6-plugins
+
+Currently the \c PieChart and \c PieSlice types are used by \c app.qml,
which is displayed using a QDeclarativeView in a C++ application. An alternative
way to use our QML extension is to create a plugin library to make it available
-to the QML engine. This means we could load \c app.qml using the \l {QML Viewer}
+to the QML engine. This allows \c app.qml to be loaded with the \l {QML Viewer}
(or some other QML \l{Qt Declarative UI Runtime}{runtime} application) instead of writing a \c main.cpp file and
loading our own C++ application.
@@ -313,28 +410,28 @@ To create a plugin library, we need:
\o A "qmldir" file that tells the QML engine to load the plugin
\endlist
-First, we create a plugin class named \c MusicPlugin. It subclasses QDeclarativeExtensionPlugin
+First, we create a plugin class named \c ChartsPlugin. It subclasses QDeclarativeExtensionPlugin
and registers our QML types in the inherited \l{QDeclarativeExtensionPlugin::}{registerTypes()} method. It also calls
Q_EXPORT_PLUGIN2 for Qt's \l{How to Create Qt Plugins}{plugin system}.
-Here is the \c MusicPlugin definition in \c musicplugin.h:
+Here is the \c ChartsPlugin definition in \c chartsplugin.h:
-\snippet declarative/tutorials/extending/chapter5-plugins/musicplugin.h 0
+\snippet declarative/tutorials/extending/chapter6-plugins/chartsplugin.h 0
-And its implementation in \c musicplugin.cpp:
+And its implementation in \c chartsplugin.cpp:
-\snippet declarative/tutorials/extending/chapter5-plugins/musicplugin.cpp 0
+\snippet declarative/tutorials/extending/chapter6-plugins/chartsplugin.cpp 0
Then, we write a \c .pro project file that defines the project as a plugin library
and specifies with DESTDIR that library files should be built into a "lib" subdirectory:
-\quotefile declarative/tutorials/extending/chapter5-plugins/chapter5-plugins.pro
+\quotefile declarative/tutorials/extending/chapter6-plugins/chapter6-plugins.pro
Finally, we add a \c qmldir file that is automatically parsed by the QML engine.
-Here, we specify that a plugin named "chapter5-plugin" (the name
+Here, we specify that a plugin named "chapter6-plugin" (the name
of the example project) can be found in the "lib" subdirectory:
-\quotefile declarative/tutorials/extending/chapter5-plugins/qmldir
+\quotefile declarative/tutorials/extending/chapter6-plugins/qmldir
Now we have a plugin, and instead of having a main.cpp and an executable, we can build
the project and then load the QML file in the \l {QML Viewer}:
@@ -345,15 +442,16 @@ the project and then load the QML file in the \l {QML Viewer}:
(On Mac OS X, you can launch the "QMLViewer" application instead.)
-Notice the "import Music 1.0" statement has disappeared from \c app.qml. This is
+Notice the "import Charts 1.0" statement has disappeared from \c app.qml. This is
because the \c qmldir file is in the same directory as \c app.qml: this is equivalent to
-having Musician.qml and Instrument.qml files inside the project directory, which could both
+having PieChart.qml and PieSlice.qml files inside the project directory, which could both
be used by \c app.qml without import statements.
*/
+
/*!
-\page qml-extending-tutorial6.html
-\title Chapter 6: In Summary
+\page qml-extending-tutorial7.html
+\title Chapter 7: In Summary
In this tutorial, we've shown the basic steps for creating a QML extension:
@@ -362,47 +460,33 @@ In this tutorial, we've shown the basic steps for creating a QML extension:
\o Add callable methods using Q_INVOKABLE or Qt slots, and connect to Qt signals with an \c onSignal syntax
\o Add property bindings by defining \l{Qt's Property System}{NOTIFY} signals
\o Define custom property types if the built-in types are not sufficient
+\o Define list property types using QDeclarativeListProperty
\o Create a plugin library by defining a Qt plugin and writing a \c qmldir file
\endlist
The \l {Extending QML in C++} reference documentation shows other useful features that can be added to
-QML extensions. For example, we could use \l{Object and List Property Types}{list properties} to allow multiple instruments for a \c Musician:
-
-\code
- Musician {
- instruments: [
- Instrument { type: "Guitar" }
- Instrument { type: "Drums" }
- Instrument { type: "Keyboard" }
- ]
- }
-\endcode
-
-Or use \l{Default Property}{default properties} and avoid an
-\c instruments property altogether:
+QML extensions. For example, we could use \l{Default Property}{default properties} to allow
+slices to be added without using the \c slices property:
\code
- Musician {
- Instrument { type: "Guitar" }
- Instrument { type: "Drums" }
- Instrument { type: "Keyboard" }
+ PieChart {
+ PieSlice { ... }
+ PieSlice { ... }
+ PieSlice { ... }
}
\endcode
-Or even change the \c instrument of a \c Musician from time to time using \l{Property Value Sources}{property value sources}:
+Or randomly add and remove slices from time to time using \l{Property Value Sources}{property value sources}:
\code
- Musician {
- InstrumentRandomizer on instrument {}
+ PieChart {
+ PieSliceRandomizer on slices {}
}
\endcode
See the \l{Extending QML in C++}{reference documentation} for more information.
-Additionally, \l {Integrating QML with existing Qt UI code} shows how to create
-and integrate with QML extensions that have drawing and graphical capabilities (through QGraphicsWidget).
-
*/
diff --git a/doc/src/declarative/pics/extending-tutorial-chapter1.png b/doc/src/declarative/pics/extending-tutorial-chapter1.png
new file mode 100644
index 0000000..9f5836b
--- /dev/null
+++ b/doc/src/declarative/pics/extending-tutorial-chapter1.png
Binary files differ
diff --git a/doc/src/declarative/pics/extending-tutorial-chapter2.png b/doc/src/declarative/pics/extending-tutorial-chapter2.png
new file mode 100644
index 0000000..5c8f222
--- /dev/null
+++ b/doc/src/declarative/pics/extending-tutorial-chapter2.png
Binary files differ
diff --git a/doc/src/declarative/pics/extending-tutorial-chapter3.png b/doc/src/declarative/pics/extending-tutorial-chapter3.png
new file mode 100644
index 0000000..825553f
--- /dev/null
+++ b/doc/src/declarative/pics/extending-tutorial-chapter3.png
Binary files differ
diff --git a/doc/src/declarative/pics/extending-tutorial-chapter5.png b/doc/src/declarative/pics/extending-tutorial-chapter5.png
new file mode 100644
index 0000000..0c2e69e
--- /dev/null
+++ b/doc/src/declarative/pics/extending-tutorial-chapter5.png
Binary files differ
diff --git a/examples/declarative/tutorials/extending/chapter1-basics/app.qml b/examples/declarative/tutorials/extending/chapter1-basics/app.qml
index 9af155c..ada088d 100644
--- a/examples/declarative/tutorials/extending/chapter1-basics/app.qml
+++ b/examples/declarative/tutorials/extending/chapter1-basics/app.qml
@@ -38,21 +38,23 @@
**
****************************************************************************/
//![0]
-import Music 1.0
+import Charts 1.0
import Qt 4.7
-Rectangle {
+Item {
width: 300; height: 200
- Musician {
- id: aMusician
- name: "Reddy the Rocker"
- instrument: "Guitar"
+ PieChart {
+ id: aPieChart
+ anchors.centerIn: parent
+ width: 100; height: 100
+ name: "A simple pie chart"
+ color: "red"
}
Text {
- anchors.fill: parent
- text: aMusician.name + " plays the " + aMusician.instrument
+ anchors { bottom: parent.bottom; horizontalCenter: parent.horizontalCenter; bottomMargin: 20 }
+ text: aPieChart.name
}
}
//![0]
diff --git a/examples/declarative/tutorials/extending/chapter1-basics/chapter1-basics.pro b/examples/declarative/tutorials/extending/chapter1-basics/chapter1-basics.pro
index bd05ebe..0f04167 100644
--- a/examples/declarative/tutorials/extending/chapter1-basics/chapter1-basics.pro
+++ b/examples/declarative/tutorials/extending/chapter1-basics/chapter1-basics.pro
@@ -1,5 +1,5 @@
QT += declarative
-HEADERS += musician.h
-SOURCES += musician.cpp \
+HEADERS += piechart.h
+SOURCES += piechart.cpp \
main.cpp
diff --git a/examples/declarative/tutorials/extending/chapter1-basics/main.cpp b/examples/declarative/tutorials/extending/chapter1-basics/main.cpp
index 8ef6965..a5dbab3 100644
--- a/examples/declarative/tutorials/extending/chapter1-basics/main.cpp
+++ b/examples/declarative/tutorials/extending/chapter1-basics/main.cpp
@@ -38,7 +38,7 @@
**
****************************************************************************/
//![0]
-#include "musician.h"
+#include "piechart.h"
#include <qdeclarative.h>
#include <QDeclarativeView>
#include <QApplication>
@@ -47,7 +47,7 @@ int main(int argc, char *argv[])
{
QApplication app(argc, argv);
- qmlRegisterType<Musician>("Music", 1, 0, "Musician");
+ qmlRegisterType<PieChart>("Charts", 1, 0, "PieChart");
QDeclarativeView view;
view.setSource(QUrl::fromLocalFile("app.qml"));
diff --git a/examples/declarative/tutorials/extending/chapter1-basics/piechart.cpp b/examples/declarative/tutorials/extending/chapter1-basics/piechart.cpp
new file mode 100644
index 0000000..3b9ef71
--- /dev/null
+++ b/examples/declarative/tutorials/extending/chapter1-basics/piechart.cpp
@@ -0,0 +1,81 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the documentation of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** You may use this file under the terms of the BSD license as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+** * Redistributions of source code must retain the above copyright
+** notice, this list of conditions and the following disclaimer.
+** * Redistributions in binary form must reproduce the above copyright
+** notice, this list of conditions and the following disclaimer in
+** the documentation and/or other materials provided with the
+** distribution.
+** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
+** the names of its contributors may be used to endorse or promote
+** products derived from this software without specific prior written
+** permission.
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+#include "piechart.h"
+#include <QPainter>
+
+//![0]
+PieChart::PieChart(QDeclarativeItem *parent)
+ : QDeclarativeItem(parent)
+{
+ // need to disable this flag to draw inside a QDeclarativeItem
+ setFlag(QGraphicsItem::ItemHasNoContents, false);
+}
+//![0]
+
+QString PieChart::name() const
+{
+ return m_name;
+}
+
+void PieChart::setName(const QString &name)
+{
+ m_name = name;
+}
+
+QColor PieChart::color() const
+{
+ return m_color;
+}
+
+void PieChart::setColor(const QColor &color)
+{
+ m_color = color;
+}
+
+//![1]
+void PieChart::paint(QPainter *painter, const QStyleOptionGraphicsItem *, QWidget *)
+{
+ QPen pen(m_color, 2);
+ painter->setPen(pen);
+ painter->setRenderHints(QPainter::Antialiasing, true);
+ painter->drawPie(boundingRect(), 90 * 16, 290 * 16);
+}
+//![1]
+
diff --git a/examples/declarative/tutorials/extending/chapter1-basics/musician.h b/examples/declarative/tutorials/extending/chapter1-basics/piechart.h
index f9a0537..aae7b26 100644
--- a/examples/declarative/tutorials/extending/chapter1-basics/musician.h
+++ b/examples/declarative/tutorials/extending/chapter1-basics/piechart.h
@@ -37,30 +37,33 @@
** $QT_END_LICENSE$
**
****************************************************************************/
-#ifndef MUSICIAN_H
-#define MUSICIAN_H
+#ifndef PIECHART_H
+#define PIECHART_H
//![0]
-#include <QObject>
+#include <QDeclarativeItem>
+#include <QColor>
-class Musician : public QObject
+class PieChart : public QDeclarativeItem
{
Q_OBJECT
Q_PROPERTY(QString name READ name WRITE setName)
- Q_PROPERTY(QString instrument READ instrument WRITE setInstrument)
+ Q_PROPERTY(QColor color READ color WRITE setColor)
public:
- Musician(QObject *parent = 0);
+ PieChart(QDeclarativeItem *parent = 0);
QString name() const;
void setName(const QString &name);
- QString instrument() const;
- void setInstrument(const QString &instrument);
+ QColor color() const;
+ void setColor(const QColor &color);
+
+ void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget = 0);
private:
QString m_name;
- QString m_instrument;
+ QColor m_color;
};
//![0]
diff --git a/examples/declarative/tutorials/extending/chapter2-methods/app.qml b/examples/declarative/tutorials/extending/chapter2-methods/app.qml
index 02d33c2..0b55f7c 100644
--- a/examples/declarative/tutorials/extending/chapter2-methods/app.qml
+++ b/examples/declarative/tutorials/extending/chapter2-methods/app.qml
@@ -38,23 +38,29 @@
**
****************************************************************************/
//![0]
-import Music 1.0
+import Charts 1.0
import Qt 4.7
-Rectangle {
- width: 200; height: 200
+Item {
+ width: 300; height: 200
- Musician {
- id: aMusician
- name: "Reddy the Rocker"
- instrument: "Guitar"
+ PieChart {
+ id: aPieChart
+ anchors.centerIn: parent
+ width: 100; height: 100
+ color: "red"
- onPerformanceEnded: console.log("The performance has now ended")
+ onChartCleared: console.log("The chart has been cleared")
}
MouseArea {
anchors.fill: parent
- onClicked: aMusician.perform()
+ onClicked: aPieChart.clearChart()
+ }
+
+ Text {
+ anchors { bottom: parent.bottom; horizontalCenter: parent.horizontalCenter; bottomMargin: 20 }
+ text: "Click anywhere to clear the chart"
}
}
//![0]
diff --git a/examples/declarative/tutorials/extending/chapter2-methods/chapter2-methods.pro b/examples/declarative/tutorials/extending/chapter2-methods/chapter2-methods.pro
index bd05ebe..0f04167 100644
--- a/examples/declarative/tutorials/extending/chapter2-methods/chapter2-methods.pro
+++ b/examples/declarative/tutorials/extending/chapter2-methods/chapter2-methods.pro
@@ -1,5 +1,5 @@
QT += declarative
-HEADERS += musician.h
-SOURCES += musician.cpp \
+HEADERS += piechart.h
+SOURCES += piechart.cpp \
main.cpp
diff --git a/examples/declarative/tutorials/extending/chapter2-methods/main.cpp b/examples/declarative/tutorials/extending/chapter2-methods/main.cpp
index 8ef6965..a5dbab3 100644
--- a/examples/declarative/tutorials/extending/chapter2-methods/main.cpp
+++ b/examples/declarative/tutorials/extending/chapter2-methods/main.cpp
@@ -38,7 +38,7 @@
**
****************************************************************************/
//![0]
-#include "musician.h"
+#include "piechart.h"
#include <qdeclarative.h>
#include <QDeclarativeView>
#include <QApplication>
@@ -47,7 +47,7 @@ int main(int argc, char *argv[])
{
QApplication app(argc, argv);
- qmlRegisterType<Musician>("Music", 1, 0, "Musician");
+ qmlRegisterType<PieChart>("Charts", 1, 0, "PieChart");
QDeclarativeView view;
view.setSource(QUrl::fromLocalFile("app.qml"));
diff --git a/examples/declarative/tutorials/extending/chapter2-methods/piechart.cpp b/examples/declarative/tutorials/extending/chapter2-methods/piechart.cpp
new file mode 100644
index 0000000..11ff7c8
--- /dev/null
+++ b/examples/declarative/tutorials/extending/chapter2-methods/piechart.cpp
@@ -0,0 +1,87 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the documentation of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** You may use this file under the terms of the BSD license as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+** * Redistributions of source code must retain the above copyright
+** notice, this list of conditions and the following disclaimer.
+** * Redistributions in binary form must reproduce the above copyright
+** notice, this list of conditions and the following disclaimer in
+** the documentation and/or other materials provided with the
+** distribution.
+** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
+** the names of its contributors may be used to endorse or promote
+** products derived from this software without specific prior written
+** permission.
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+#include "piechart.h"
+#include <QPainter>
+#include <QDebug>
+
+PieChart::PieChart(QDeclarativeItem *parent)
+ : QDeclarativeItem(parent)
+{
+ // need to disable this flag to draw inside a QDeclarativeItem
+ setFlag(QGraphicsItem::ItemHasNoContents, false);
+}
+
+QString PieChart::name() const
+{
+ return m_name;
+}
+
+void PieChart::setName(const QString &name)
+{
+ m_name = name;
+}
+
+QColor PieChart::color() const
+{
+ return m_color;
+}
+
+void PieChart::setColor(const QColor &color)
+{
+ m_color = color;
+}
+
+void PieChart::paint(QPainter *painter, const QStyleOptionGraphicsItem *, QWidget *)
+{
+ QPen pen(m_color, 2);
+ painter->setPen(pen);
+ painter->setRenderHints(QPainter::Antialiasing, true);
+ painter->drawPie(boundingRect(), 90 * 16, 290 * 16);
+}
+
+//![0]
+void PieChart::clearChart()
+{
+ setColor(QColor(Qt::transparent));
+ update();
+
+ emit chartCleared();
+}
+//![0]
diff --git a/examples/declarative/tutorials/extending/chapter3-bindings/musician.h b/examples/declarative/tutorials/extending/chapter2-methods/piechart.h
index 0b0addb..246fd9f 100644
--- a/examples/declarative/tutorials/extending/chapter3-bindings/musician.h
+++ b/examples/declarative/tutorials/extending/chapter2-methods/piechart.h
@@ -37,42 +37,44 @@
** $QT_END_LICENSE$
**
****************************************************************************/
-#ifndef MUSICIAN_H
-#define MUSICIAN_H
+#ifndef PIECHART_H
+#define PIECHART_H
-#include <QObject>
+#include <QDeclarativeItem>
+#include <QColor>
//![0]
-class Musician : public QObject
+class PieChart : public QDeclarativeItem
{
//![0]
Q_OBJECT
Q_PROPERTY(QString name READ name WRITE setName)
- Q_PROPERTY(QString instrument READ instrument WRITE setInstrument)
+ Q_PROPERTY(QColor color READ color WRITE setColor)
//![1]
- Q_PROPERTY(QString instrument READ instrument WRITE setInstrument NOTIFY instrumentChanged)
public:
//![1]
- Musician(QObject *parent = 0);
+ PieChart(QDeclarativeItem *parent = 0);
QString name() const;
void setName(const QString &name);
- QString instrument() const;
- void setInstrument(const QString &instrument);
+ QColor color() const;
+ void setColor(const QColor &color);
- Q_INVOKABLE void perform();
+ void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget = 0);
//![2]
+ Q_INVOKABLE void clearChart();
+
signals:
- void instrumentChanged();
+ void chartCleared();
//![2]
private:
QString m_name;
- QString m_instrument;
+ QColor m_color;
//![3]
};
diff --git a/examples/declarative/tutorials/extending/chapter3-bindings/app.qml b/examples/declarative/tutorials/extending/chapter3-bindings/app.qml
index 8bf6ecf..2ff6ae1 100644
--- a/examples/declarative/tutorials/extending/chapter3-bindings/app.qml
+++ b/examples/declarative/tutorials/extending/chapter3-bindings/app.qml
@@ -38,35 +38,37 @@
**
****************************************************************************/
//![0]
-import Music 1.0
+import Charts 1.0
import Qt 4.7
-Rectangle {
- width: 200; height: 200
+Item {
+ width: 300; height: 200
- Musician {
- id: reddy
- name: "Reddy the Rocker"
- instrument: "Guitar"
- }
+ Row {
+ anchors.centerIn: parent
+ spacing: 20
+
+ PieChart {
+ id: chartA
+ width: 100; height: 100
+ color: "red"
+ }
- Musician {
- id: craig
- name: "Craig the Copycat"
- instrument: reddy.instrument
+ PieChart {
+ id: chartB
+ width: 100; height: 100
+ color: chartA.color
+ }
}
MouseArea {
anchors.fill: parent
- onClicked: {
- reddy.perform()
- craig.perform()
-
- reddy.instrument = "Drums"
+ onClicked: { chartA.color = "blue" }
+ }
- reddy.perform()
- craig.perform()
- }
+ Text {
+ anchors { bottom: parent.bottom; horizontalCenter: parent.horizontalCenter; bottomMargin: 20 }
+ text: "Click anywhere to change the chart color"
}
}
//![0]
diff --git a/examples/declarative/tutorials/extending/chapter3-bindings/chapter3-bindings.pro b/examples/declarative/tutorials/extending/chapter3-bindings/chapter3-bindings.pro
index bd05ebe..0f04167 100644
--- a/examples/declarative/tutorials/extending/chapter3-bindings/chapter3-bindings.pro
+++ b/examples/declarative/tutorials/extending/chapter3-bindings/chapter3-bindings.pro
@@ -1,5 +1,5 @@
QT += declarative
-HEADERS += musician.h
-SOURCES += musician.cpp \
+HEADERS += piechart.h
+SOURCES += piechart.cpp \
main.cpp
diff --git a/examples/declarative/tutorials/extending/chapter3-bindings/main.cpp b/examples/declarative/tutorials/extending/chapter3-bindings/main.cpp
index 8ef6965..a5dbab3 100644
--- a/examples/declarative/tutorials/extending/chapter3-bindings/main.cpp
+++ b/examples/declarative/tutorials/extending/chapter3-bindings/main.cpp
@@ -38,7 +38,7 @@
**
****************************************************************************/
//![0]
-#include "musician.h"
+#include "piechart.h"
#include <qdeclarative.h>
#include <QDeclarativeView>
#include <QApplication>
@@ -47,7 +47,7 @@ int main(int argc, char *argv[])
{
QApplication app(argc, argv);
- qmlRegisterType<Musician>("Music", 1, 0, "Musician");
+ qmlRegisterType<PieChart>("Charts", 1, 0, "PieChart");
QDeclarativeView view;
view.setSource(QUrl::fromLocalFile("app.qml"));
diff --git a/examples/declarative/tutorials/extending/chapter3-bindings/piechart.cpp b/examples/declarative/tutorials/extending/chapter3-bindings/piechart.cpp
new file mode 100644
index 0000000..85a9762
--- /dev/null
+++ b/examples/declarative/tutorials/extending/chapter3-bindings/piechart.cpp
@@ -0,0 +1,89 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the documentation of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** You may use this file under the terms of the BSD license as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+** * Redistributions of source code must retain the above copyright
+** notice, this list of conditions and the following disclaimer.
+** * Redistributions in binary form must reproduce the above copyright
+** notice, this list of conditions and the following disclaimer in
+** the documentation and/or other materials provided with the
+** distribution.
+** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
+** the names of its contributors may be used to endorse or promote
+** products derived from this software without specific prior written
+** permission.
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+#include "piechart.h"
+#include <QPainter>
+#include <QDebug>
+
+PieChart::PieChart(QDeclarativeItem *parent)
+ : QDeclarativeItem(parent)
+{
+ // need to disable this flag to draw inside a QDeclarativeItem
+ setFlag(QGraphicsItem::ItemHasNoContents, false);
+}
+
+QString PieChart::name() const
+{
+ return m_name;
+}
+
+void PieChart::setName(const QString &name)
+{
+ m_name = name;
+}
+
+QColor PieChart::color() const
+{
+ return m_color;
+}
+
+//![0]
+void PieChart::setColor(const QColor &color)
+{
+ if (color != m_color) {
+ m_color = color;
+ update(); // repaint with the new color
+ emit colorChanged();
+ }
+}
+//![0]
+
+void PieChart::paint(QPainter *painter, const QStyleOptionGraphicsItem *, QWidget *)
+{
+ QPen pen(m_color, 2);
+ painter->setPen(pen);
+ painter->setRenderHints(QPainter::Antialiasing, true);
+ painter->drawPie(boundingRect(), 90 * 16, 290 * 16);
+}
+
+void PieChart::clearChart()
+{
+ setColor(QColor(Qt::transparent));
+ update();
+}
diff --git a/examples/declarative/tutorials/extending/chapter3-bindings/piechart.h b/examples/declarative/tutorials/extending/chapter3-bindings/piechart.h
new file mode 100644
index 0000000..164cebb
--- /dev/null
+++ b/examples/declarative/tutorials/extending/chapter3-bindings/piechart.h
@@ -0,0 +1,84 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the documentation of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** You may use this file under the terms of the BSD license as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+** * Redistributions of source code must retain the above copyright
+** notice, this list of conditions and the following disclaimer.
+** * Redistributions in binary form must reproduce the above copyright
+** notice, this list of conditions and the following disclaimer in
+** the documentation and/or other materials provided with the
+** distribution.
+** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
+** the names of its contributors may be used to endorse or promote
+** products derived from this software without specific prior written
+** permission.
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+#ifndef PIECHART_H
+#define PIECHART_H
+
+#include <QDeclarativeItem>
+#include <QColor>
+
+//![0]
+class PieChart : public QDeclarativeItem
+{
+//![0]
+ Q_OBJECT
+ Q_PROPERTY(QString name READ name WRITE setName)
+
+//![1]
+ Q_PROPERTY(QColor color READ color WRITE setColor NOTIFY colorChanged)
+public:
+//![1]
+
+ PieChart(QDeclarativeItem *parent = 0);
+
+ QString name() const;
+ void setName(const QString &name);
+
+ QColor color() const;
+ void setColor(const QColor &color);
+
+ void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget = 0);
+
+ Q_INVOKABLE void clearChart();
+
+//![2]
+signals:
+ void colorChanged();
+//![2]
+
+private:
+ QString m_name;
+ QColor m_color;
+
+//![3]
+};
+//![3]
+
+#endif
+
diff --git a/examples/declarative/tutorials/extending/chapter4-customPropertyTypes/app.qml b/examples/declarative/tutorials/extending/chapter4-customPropertyTypes/app.qml
index d76f801..fcd3806 100644
--- a/examples/declarative/tutorials/extending/chapter4-customPropertyTypes/app.qml
+++ b/examples/declarative/tutorials/extending/chapter4-customPropertyTypes/app.qml
@@ -38,17 +38,23 @@
**
****************************************************************************/
//![0]
-import Music 1.0
+import Charts 1.0
import Qt 4.7
Item {
+ width: 300; height: 200
- Musician {
- id: reddy
- name: "Reddy the Rocker"
- instrument: Instrument { type: "Guitar" }
+ PieChart {
+ id: chart
+ anchors.centerIn: parent
+ width: 100; height: 100
+
+ pieSlice: PieSlice {
+ anchors.fill: parent
+ color: "red"
+ }
}
- Component.onCompleted: console.log("Reddy plays the " + reddy.instrument.type)
+ Component.onCompleted: console.log("The pie is colored " + chart.pieSlice.color)
}
//![0]
diff --git a/examples/declarative/tutorials/extending/chapter4-customPropertyTypes/chapter4-customPropertyTypes.pro b/examples/declarative/tutorials/extending/chapter4-customPropertyTypes/chapter4-customPropertyTypes.pro
index aea07a0..c3f5402 100644
--- a/examples/declarative/tutorials/extending/chapter4-customPropertyTypes/chapter4-customPropertyTypes.pro
+++ b/examples/declarative/tutorials/extending/chapter4-customPropertyTypes/chapter4-customPropertyTypes.pro
@@ -1,7 +1,7 @@
QT += declarative
-HEADERS += musician.h \
- instrument.h
-SOURCES += musician.cpp \
- instrument.cpp \
+HEADERS += piechart.h \
+ pieslice.h
+SOURCES += piechart.cpp \
+ pieslice.cpp \
main.cpp
diff --git a/examples/declarative/tutorials/extending/chapter4-customPropertyTypes/instrument.cpp b/examples/declarative/tutorials/extending/chapter4-customPropertyTypes/instrument.cpp
deleted file mode 100644
index 9ca96f6..0000000
--- a/examples/declarative/tutorials/extending/chapter4-customPropertyTypes/instrument.cpp
+++ /dev/null
@@ -1,56 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
-** All rights reserved.
-** Contact: Nokia Corporation (qt-info@nokia.com)
-**
-** This file is part of the documentation of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:BSD$
-** You may use this file under the terms of the BSD license as follows:
-**
-** "Redistribution and use in source and binary forms, with or without
-** modification, are permitted provided that the following conditions are
-** met:
-** * Redistributions of source code must retain the above copyright
-** notice, this list of conditions and the following disclaimer.
-** * Redistributions in binary form must reproduce the above copyright
-** notice, this list of conditions and the following disclaimer in
-** the documentation and/or other materials provided with the
-** distribution.
-** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
-** the names of its contributors may be used to endorse or promote
-** products derived from this software without specific prior written
-** permission.
-**
-** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-#include "instrument.h"
-
-Instrument::Instrument(QObject *parent)
- : QObject(parent)
-{
-}
-
-QString Instrument::type() const
-{
- return m_type;
-}
-
-void Instrument::setType(const QString &type)
-{
- m_type = type;
-}
-
diff --git a/examples/declarative/tutorials/extending/chapter4-customPropertyTypes/main.cpp b/examples/declarative/tutorials/extending/chapter4-customPropertyTypes/main.cpp
index d94cb03..fd518a2 100644
--- a/examples/declarative/tutorials/extending/chapter4-customPropertyTypes/main.cpp
+++ b/examples/declarative/tutorials/extending/chapter4-customPropertyTypes/main.cpp
@@ -37,8 +37,8 @@
** $QT_END_LICENSE$
**
****************************************************************************/
-#include "musician.h"
-#include "instrument.h"
+#include "piechart.h"
+#include "pieslice.h"
#include <qdeclarative.h>
#include <QDeclarativeView>
@@ -50,10 +50,10 @@ int main(int argc, char *argv[])
//![0]
QApplication app(argc, argv);
- qmlRegisterType<Musician>("Music", 1, 0, "Musician");
+ qmlRegisterType<PieChart>("Charts", 1, 0, "PieChart");
//![1]
- qmlRegisterType<Instrument>("Music", 1, 0, "Instrument");
+ qmlRegisterType<PieSlice>("Charts", 1, 0, "PieSlice");
//![1]
QDeclarativeView view;
diff --git a/examples/declarative/tutorials/extending/chapter2-methods/musician.cpp b/examples/declarative/tutorials/extending/chapter4-customPropertyTypes/piechart.cpp
index 0ce0022..7098854 100644
--- a/examples/declarative/tutorials/extending/chapter2-methods/musician.cpp
+++ b/examples/declarative/tutorials/extending/chapter4-customPropertyTypes/piechart.cpp
@@ -37,38 +37,36 @@
** $QT_END_LICENSE$
**
****************************************************************************/
-#include "musician.h"
-#include <QDebug>
+#include "piechart.h"
+#include "pieslice.h"
-Musician::Musician(QObject *parent)
- : QObject(parent)
+PieChart::PieChart(QDeclarativeItem *parent)
+ : QDeclarativeItem(parent)
{
+ // this doesn't need to disable QGraphicsItem::ItemHasNoContents
+ // anymore since the drawing is now done in PieSlice
}
-QString Musician::name() const
+QString PieChart::name() const
{
return m_name;
}
-void Musician::setName(const QString &name)
+void PieChart::setName(const QString &name)
{
m_name = name;
}
-QString Musician::instrument() const
+PieSlice *PieChart::pieSlice() const
{
- return m_instrument;
-}
-
-void Musician::setInstrument(const QString &instrument)
-{
- m_instrument = instrument;
+ return m_pieSlice;
}
//![0]
-void Musician::perform()
+void PieChart::setPieSlice(PieSlice *pieSlice)
{
- qWarning() << m_name << "is playing the" << m_instrument;
- emit performanceEnded();
+ m_pieSlice = pieSlice;
+ pieSlice->setParentItem(this);
}
//![0]
+
diff --git a/examples/declarative/tutorials/extending/chapter4-customPropertyTypes/musician.h b/examples/declarative/tutorials/extending/chapter4-customPropertyTypes/piechart.h
index 8f67f61..448ca7b 100644
--- a/examples/declarative/tutorials/extending/chapter4-customPropertyTypes/musician.h
+++ b/examples/declarative/tutorials/extending/chapter4-customPropertyTypes/piechart.h
@@ -37,18 +37,18 @@
** $QT_END_LICENSE$
**
****************************************************************************/
-#ifndef MUSICIAN_H
-#define MUSICIAN_H
+#ifndef PIECHART_H
+#define PIECHART_H
-#include <QObject>
+#include <QDeclarativeItem>
-class Instrument;
+class PieSlice;
//![0]
-class Musician : public QObject
+class PieChart : public QDeclarativeItem
{
Q_OBJECT
- Q_PROPERTY(Instrument* instrument READ instrument WRITE setInstrument)
+ Q_PROPERTY(PieSlice* pieSlice READ pieSlice WRITE setPieSlice)
//![0]
Q_PROPERTY(QString name READ name WRITE setName)
@@ -56,19 +56,19 @@ class Musician : public QObject
public:
//![1]
- Musician(QObject *parent = 0);
+ PieChart(QDeclarativeItem *parent = 0);
QString name() const;
void setName(const QString &name);
//![2]
- Instrument *instrument() const;
- void setInstrument(Instrument *instrument);
+ PieSlice *pieSlice() const;
+ void setPieSlice(PieSlice *pieSlice);
//![2]
private:
QString m_name;
- Instrument *m_instrument;
+ PieSlice *m_pieSlice;
//![3]
};
diff --git a/examples/declarative/tutorials/extending/chapter4-customPropertyTypes/pieslice.cpp b/examples/declarative/tutorials/extending/chapter4-customPropertyTypes/pieslice.cpp
new file mode 100644
index 0000000..7a420fd
--- /dev/null
+++ b/examples/declarative/tutorials/extending/chapter4-customPropertyTypes/pieslice.cpp
@@ -0,0 +1,68 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the documentation of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** You may use this file under the terms of the BSD license as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+** * Redistributions of source code must retain the above copyright
+** notice, this list of conditions and the following disclaimer.
+** * Redistributions in binary form must reproduce the above copyright
+** notice, this list of conditions and the following disclaimer in
+** the documentation and/or other materials provided with the
+** distribution.
+** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
+** the names of its contributors may be used to endorse or promote
+** products derived from this software without specific prior written
+** permission.
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+#include "pieslice.h"
+
+#include <QPainter>
+
+PieSlice::PieSlice(QDeclarativeItem *parent)
+ : QDeclarativeItem(parent)
+{
+ // need to disable this flag to draw inside a QDeclarativeItem
+ setFlag(QGraphicsItem::ItemHasNoContents, false);
+}
+
+QColor PieSlice::color() const
+{
+ return m_color;
+}
+
+void PieSlice::setColor(const QColor &color)
+{
+ m_color = color;
+}
+
+void PieSlice::paint(QPainter *painter, const QStyleOptionGraphicsItem *, QWidget *)
+{
+ QPen pen(m_color, 2);
+ painter->setPen(pen);
+ painter->setRenderHints(QPainter::Antialiasing, true);
+ painter->drawPie(boundingRect(), 90 * 16, 290 * 16);
+}
+
diff --git a/examples/declarative/tutorials/extending/chapter4-customPropertyTypes/instrument.h b/examples/declarative/tutorials/extending/chapter4-customPropertyTypes/pieslice.h
index 9971207..085a9b8 100644
--- a/examples/declarative/tutorials/extending/chapter4-customPropertyTypes/instrument.h
+++ b/examples/declarative/tutorials/extending/chapter4-customPropertyTypes/pieslice.h
@@ -37,25 +37,28 @@
** $QT_END_LICENSE$
**
****************************************************************************/
-#ifndef INSTRUMENT_H
-#define INSTRUMENT_H
+#ifndef PIESLICE_H
+#define PIESLICE_H
-#include <QObject>
+#include <QDeclarativeItem>
+#include <QColor>
//![0]
-class Instrument : public QObject
+class PieSlice : public QDeclarativeItem
{
Q_OBJECT
- Q_PROPERTY(QString type READ type WRITE setType)
+ Q_PROPERTY(QColor color READ color WRITE setColor)
public:
- Instrument(QObject *parent = 0);
+ PieSlice(QDeclarativeItem *parent = 0);
- QString type() const;
- void setType(const QString &type);
+ QColor color() const;
+ void setColor(const QColor &color);
+
+ void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget = 0);
private:
- QString m_type;
+ QColor m_color;
};
//![0]
diff --git a/examples/declarative/tutorials/extending/chapter5-listproperties/app.qml b/examples/declarative/tutorials/extending/chapter5-listproperties/app.qml
new file mode 100644
index 0000000..f759bc9
--- /dev/null
+++ b/examples/declarative/tutorials/extending/chapter5-listproperties/app.qml
@@ -0,0 +1,70 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the QtDeclarative module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** You may use this file under the terms of the BSD license as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+** * Redistributions of source code must retain the above copyright
+** notice, this list of conditions and the following disclaimer.
+** * Redistributions in binary form must reproduce the above copyright
+** notice, this list of conditions and the following disclaimer in
+** the documentation and/or other materials provided with the
+** distribution.
+** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
+** the names of its contributors may be used to endorse or promote
+** products derived from this software without specific prior written
+** permission.
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+//![0]
+import Charts 1.0
+import Qt 4.7
+
+Item {
+ width: 300; height: 200
+
+ PieChart {
+ anchors.centerIn: parent
+ width: 100; height: 100
+
+ slices: [
+ PieSlice {
+ anchors.fill: parent
+ color: "red"
+ fromAngle: 0; angleSpan: 110
+ },
+ PieSlice {
+ anchors.fill: parent
+ color: "black"
+ fromAngle: 110; angleSpan: 50
+ },
+ PieSlice {
+ anchors.fill: parent
+ color: "blue"
+ fromAngle: 160; angleSpan: 100
+ }
+ ]
+ }
+}
+//![0]
diff --git a/examples/declarative/tutorials/extending/chapter5-listproperties/chapter5-listproperties.pro b/examples/declarative/tutorials/extending/chapter5-listproperties/chapter5-listproperties.pro
new file mode 100644
index 0000000..c3f5402
--- /dev/null
+++ b/examples/declarative/tutorials/extending/chapter5-listproperties/chapter5-listproperties.pro
@@ -0,0 +1,7 @@
+QT += declarative
+
+HEADERS += piechart.h \
+ pieslice.h
+SOURCES += piechart.cpp \
+ pieslice.cpp \
+ main.cpp
diff --git a/examples/declarative/tutorials/extending/chapter1-basics/musician.cpp b/examples/declarative/tutorials/extending/chapter5-listproperties/main.cpp
index 6c42f31..f73c49f 100644
--- a/examples/declarative/tutorials/extending/chapter1-basics/musician.cpp
+++ b/examples/declarative/tutorials/extending/chapter5-listproperties/main.cpp
@@ -37,30 +37,22 @@
** $QT_END_LICENSE$
**
****************************************************************************/
-#include "musician.h"
+#include "piechart.h"
+#include "pieslice.h"
-Musician::Musician(QObject *parent)
- : QObject(parent)
-{
-}
-
-QString Musician::name() const
-{
- return m_name;
-}
+#include <qdeclarative.h>
+#include <QDeclarativeView>
+#include <QApplication>
-void Musician::setName(const QString &name)
+int main(int argc, char *argv[])
{
- m_name = name;
-}
+ QApplication app(argc, argv);
-QString Musician::instrument() const
-{
- return m_instrument;
-}
+ qmlRegisterType<PieChart>("Charts", 1, 0, "PieChart");
+ qmlRegisterType<PieSlice>("Charts", 1, 0, "PieSlice");
-void Musician::setInstrument(const QString &instrument)
-{
- m_instrument = instrument;
+ QDeclarativeView view;
+ view.setSource(QUrl::fromLocalFile("app.qml"));
+ view.show();
+ return app.exec();
}
-
diff --git a/examples/declarative/tutorials/extending/chapter3-bindings/musician.cpp b/examples/declarative/tutorials/extending/chapter5-listproperties/piechart.cpp
index 5f9ead4..2515b64 100644
--- a/examples/declarative/tutorials/extending/chapter3-bindings/musician.cpp
+++ b/examples/declarative/tutorials/extending/chapter5-listproperties/piechart.cpp
@@ -37,40 +37,36 @@
** $QT_END_LICENSE$
**
****************************************************************************/
-#include "musician.h"
-#include <QDebug>
+#include "piechart.h"
+#include "pieslice.h"
-Musician::Musician(QObject *parent)
- : QObject(parent)
+PieChart::PieChart(QDeclarativeItem *parent)
+ : QDeclarativeItem(parent)
{
}
-QString Musician::name() const
+QString PieChart::name() const
{
return m_name;
}
-void Musician::setName(const QString &name)
+void PieChart::setName(const QString &name)
{
m_name = name;
}
-QString Musician::instrument() const
+//![0]
+QDeclarativeListProperty<PieSlice> PieChart::slices()
{
- return m_instrument;
+ return QDeclarativeListProperty<PieSlice>(this, 0, &PieChart::append_slice);
}
-//![0]
-void Musician::setInstrument(const QString &instrument)
+void PieChart::append_slice(QDeclarativeListProperty<PieSlice> *list, PieSlice *slice)
{
- if (instrument != m_instrument) {
- m_instrument = instrument;
- emit instrumentChanged();
+ PieChart *chart = qobject_cast<PieChart *>(list->object);
+ if (chart) {
+ slice->setParentItem(chart);
+ chart->m_slices.append(slice);
}
}
//![0]
-
-void Musician::perform()
-{
- qWarning() << m_name << "is playing the" << m_instrument;
-}
diff --git a/examples/declarative/tutorials/extending/chapter2-methods/musician.h b/examples/declarative/tutorials/extending/chapter5-listproperties/piechart.h
index 86849ba..4424251 100644
--- a/examples/declarative/tutorials/extending/chapter2-methods/musician.h
+++ b/examples/declarative/tutorials/extending/chapter5-listproperties/piechart.h
@@ -37,45 +37,39 @@
** $QT_END_LICENSE$
**
****************************************************************************/
-#ifndef MUSICIAN_H
-#define MUSICIAN_H
+#ifndef PIECHART_H
+#define PIECHART_H
-#include <QObject>
+#include <QDeclarativeItem>
+
+class PieSlice;
//![0]
-class Musician : public QObject
+class PieChart : public QDeclarativeItem
{
-//![0]
Q_OBJECT
+ Q_PROPERTY(QDeclarativeListProperty<PieSlice> slices READ slices)
+//![0]
Q_PROPERTY(QString name READ name WRITE setName)
- Q_PROPERTY(QString instrument READ instrument WRITE setInstrument)
//![1]
public:
//![1]
-
- Musician(QObject *parent = 0);
+ PieChart(QDeclarativeItem *parent = 0);
QString name() const;
void setName(const QString &name);
- QString instrument() const;
- void setInstrument(const QString &instrument);
-
-//![2]
- Q_INVOKABLE void perform();
-
-signals:
- void performanceEnded();
//![2]
+ QDeclarativeListProperty<PieSlice> slices();
private:
- QString m_name;
- QString m_instrument;
+ static void append_slice(QDeclarativeListProperty<PieSlice> *list, PieSlice *slice);
-//![3]
+ QString m_name;
+ QList<PieSlice *> m_slices;
};
-//![3]
+//![2]
#endif
diff --git a/examples/declarative/tutorials/extending/chapter5-listproperties/pieslice.cpp b/examples/declarative/tutorials/extending/chapter5-listproperties/pieslice.cpp
new file mode 100644
index 0000000..65120f5
--- /dev/null
+++ b/examples/declarative/tutorials/extending/chapter5-listproperties/pieslice.cpp
@@ -0,0 +1,88 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the documentation of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** You may use this file under the terms of the BSD license as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+** * Redistributions of source code must retain the above copyright
+** notice, this list of conditions and the following disclaimer.
+** * Redistributions in binary form must reproduce the above copyright
+** notice, this list of conditions and the following disclaimer in
+** the documentation and/or other materials provided with the
+** distribution.
+** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
+** the names of its contributors may be used to endorse or promote
+** products derived from this software without specific prior written
+** permission.
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+#include "pieslice.h"
+
+#include <QPainter>
+
+PieSlice::PieSlice(QDeclarativeItem *parent)
+ : QDeclarativeItem(parent)
+{
+ // need to disable this flag to draw inside a QDeclarativeItem
+ setFlag(QGraphicsItem::ItemHasNoContents, false);
+}
+
+QColor PieSlice::color() const
+{
+ return m_color;
+}
+
+void PieSlice::setColor(const QColor &color)
+{
+ m_color = color;
+}
+
+int PieSlice::fromAngle() const
+{
+ return m_fromAngle;
+}
+
+void PieSlice::setFromAngle(int angle)
+{
+ m_fromAngle = angle;
+}
+
+int PieSlice::angleSpan() const
+{
+ return m_angleSpan;
+}
+
+void PieSlice::setAngleSpan(int angle)
+{
+ m_angleSpan = angle;
+}
+
+void PieSlice::paint(QPainter *painter, const QStyleOptionGraphicsItem *, QWidget *)
+{
+ QPen pen(m_color, 2);
+ painter->setPen(pen);
+ painter->setRenderHints(QPainter::Antialiasing, true);
+ painter->drawPie(boundingRect(), m_fromAngle * 16, m_angleSpan * 16);
+}
+
diff --git a/examples/declarative/tutorials/extending/chapter5-listproperties/pieslice.h b/examples/declarative/tutorials/extending/chapter5-listproperties/pieslice.h
new file mode 100644
index 0000000..7cd0c74
--- /dev/null
+++ b/examples/declarative/tutorials/extending/chapter5-listproperties/pieslice.h
@@ -0,0 +1,76 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the documentation of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** You may use this file under the terms of the BSD license as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+** * Redistributions of source code must retain the above copyright
+** notice, this list of conditions and the following disclaimer.
+** * Redistributions in binary form must reproduce the above copyright
+** notice, this list of conditions and the following disclaimer in
+** the documentation and/or other materials provided with the
+** distribution.
+** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
+** the names of its contributors may be used to endorse or promote
+** products derived from this software without specific prior written
+** permission.
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+#ifndef PIESLICE_H
+#define PIESLICE_H
+
+#include <QDeclarativeItem>
+#include <QColor>
+
+//![0]
+class PieSlice : public QDeclarativeItem
+{
+ Q_OBJECT
+ Q_PROPERTY(QColor color READ color WRITE setColor)
+ Q_PROPERTY(int fromAngle READ fromAngle WRITE setFromAngle)
+ Q_PROPERTY(int angleSpan READ angleSpan WRITE setAngleSpan)
+//![0]
+
+public:
+ PieSlice(QDeclarativeItem *parent = 0);
+
+ QColor color() const;
+ void setColor(const QColor &color);
+
+ int fromAngle() const;
+ void setFromAngle(int angle);
+
+ int angleSpan() const;
+ void setAngleSpan(int span);
+
+ void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget = 0);
+
+private:
+ QColor m_color;
+ int m_fromAngle;
+ int m_angleSpan;
+};
+
+#endif
+
diff --git a/examples/declarative/tutorials/extending/chapter5-plugins/instrument.cpp b/examples/declarative/tutorials/extending/chapter5-plugins/instrument.cpp
deleted file mode 100644
index 9ca96f6..0000000
--- a/examples/declarative/tutorials/extending/chapter5-plugins/instrument.cpp
+++ /dev/null
@@ -1,56 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
-** All rights reserved.
-** Contact: Nokia Corporation (qt-info@nokia.com)
-**
-** This file is part of the documentation of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:BSD$
-** You may use this file under the terms of the BSD license as follows:
-**
-** "Redistribution and use in source and binary forms, with or without
-** modification, are permitted provided that the following conditions are
-** met:
-** * Redistributions of source code must retain the above copyright
-** notice, this list of conditions and the following disclaimer.
-** * Redistributions in binary form must reproduce the above copyright
-** notice, this list of conditions and the following disclaimer in
-** the documentation and/or other materials provided with the
-** distribution.
-** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
-** the names of its contributors may be used to endorse or promote
-** products derived from this software without specific prior written
-** permission.
-**
-** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-#include "instrument.h"
-
-Instrument::Instrument(QObject *parent)
- : QObject(parent)
-{
-}
-
-QString Instrument::type() const
-{
- return m_type;
-}
-
-void Instrument::setType(const QString &type)
-{
- m_type = type;
-}
-
diff --git a/examples/declarative/tutorials/extending/chapter5-plugins/instrument.h b/examples/declarative/tutorials/extending/chapter5-plugins/instrument.h
deleted file mode 100644
index ce1e7ce..0000000
--- a/examples/declarative/tutorials/extending/chapter5-plugins/instrument.h
+++ /dev/null
@@ -1,61 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
-** All rights reserved.
-** Contact: Nokia Corporation (qt-info@nokia.com)
-**
-** This file is part of the documentation of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:BSD$
-** You may use this file under the terms of the BSD license as follows:
-**
-** "Redistribution and use in source and binary forms, with or without
-** modification, are permitted provided that the following conditions are
-** met:
-** * Redistributions of source code must retain the above copyright
-** notice, this list of conditions and the following disclaimer.
-** * Redistributions in binary form must reproduce the above copyright
-** notice, this list of conditions and the following disclaimer in
-** the documentation and/or other materials provided with the
-** distribution.
-** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
-** the names of its contributors may be used to endorse or promote
-** products derived from this software without specific prior written
-** permission.
-**
-** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-#ifndef INSTRUMENT_H
-#define INSTRUMENT_H
-
-#include <QObject>
-
-class Instrument : public QObject
-{
- Q_OBJECT
- Q_PROPERTY(QString type READ type WRITE setType)
-
-public:
- Instrument(QObject *parent = 0);
-
- QString type() const;
- void setType(const QString &type);
-
-private:
- QString m_type;
-};
-
-#endif
-
diff --git a/examples/declarative/tutorials/extending/chapter5-plugins/musician.cpp b/examples/declarative/tutorials/extending/chapter5-plugins/musician.cpp
deleted file mode 100644
index e62efb1..0000000
--- a/examples/declarative/tutorials/extending/chapter5-plugins/musician.cpp
+++ /dev/null
@@ -1,67 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
-** All rights reserved.
-** Contact: Nokia Corporation (qt-info@nokia.com)
-**
-** This file is part of the documentation of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:BSD$
-** You may use this file under the terms of the BSD license as follows:
-**
-** "Redistribution and use in source and binary forms, with or without
-** modification, are permitted provided that the following conditions are
-** met:
-** * Redistributions of source code must retain the above copyright
-** notice, this list of conditions and the following disclaimer.
-** * Redistributions in binary form must reproduce the above copyright
-** notice, this list of conditions and the following disclaimer in
-** the documentation and/or other materials provided with the
-** distribution.
-** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
-** the names of its contributors may be used to endorse or promote
-** products derived from this software without specific prior written
-** permission.
-**
-** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-#include "musician.h"
-#include "instrument.h"
-
-Musician::Musician(QObject *parent)
- : QObject(parent)
-{
-}
-
-QString Musician::name() const
-{
- return m_name;
-}
-
-void Musician::setName(const QString &name)
-{
- m_name = name;
-}
-
-Instrument *Musician::instrument() const
-{
- return m_instrument;
-}
-
-void Musician::setInstrument(Instrument *instrument)
-{
- m_instrument = instrument;
-}
-
diff --git a/examples/declarative/tutorials/extending/chapter5-plugins/qmldir b/examples/declarative/tutorials/extending/chapter5-plugins/qmldir
deleted file mode 100644
index c3afd6b..0000000
--- a/examples/declarative/tutorials/extending/chapter5-plugins/qmldir
+++ /dev/null
@@ -1 +0,0 @@
-plugin chapter5-plugins lib
diff --git a/examples/declarative/tutorials/extending/chapter5-plugins/app.qml b/examples/declarative/tutorials/extending/chapter6-plugins/app.qml
index 9c050b8..38ceefa 100644
--- a/examples/declarative/tutorials/extending/chapter5-plugins/app.qml
+++ b/examples/declarative/tutorials/extending/chapter6-plugins/app.qml
@@ -37,17 +37,32 @@
** $QT_END_LICENSE$
**
****************************************************************************/
-
import Qt 4.7
Item {
+ width: 300; height: 200
- Musician {
- id: reddy
- name: "Reddy the Rocker"
- instrument: Instrument { type: "Guitar" }
- }
+ PieChart {
+ anchors.centerIn: parent
+ width: 100; height: 100
- Component.onCompleted: console.log("Reddy plays the " + reddy.instrument.type)
+ slices: [
+ PieSlice {
+ anchors.fill: parent
+ color: "red"
+ fromAngle: 0; angleSpan: 110
+ },
+ PieSlice {
+ anchors.fill: parent
+ color: "black"
+ fromAngle: 110; angleSpan: 50
+ },
+ PieSlice {
+ anchors.fill: parent
+ color: "blue"
+ fromAngle: 160; angleSpan: 100
+ }
+ ]
+ }
}
diff --git a/examples/declarative/tutorials/extending/chapter5-plugins/chapter5-plugins.pro b/examples/declarative/tutorials/extending/chapter6-plugins/chapter6-plugins.pro
index 483da8f..1ffbf29 100644
--- a/examples/declarative/tutorials/extending/chapter5-plugins/chapter5-plugins.pro
+++ b/examples/declarative/tutorials/extending/chapter6-plugins/chapter6-plugins.pro
@@ -6,13 +6,13 @@ DESTDIR = lib
OBJECTS_DIR = tmp
MOC_DIR = tmp
-HEADERS += musician.h \
- instrument.h \
- musicplugin.h
+HEADERS += piechart.h \
+ pieslice.h \
+ chartsplugin.h
-SOURCES += musician.cpp \
- instrument.cpp \
- musicplugin.cpp
+SOURCES += piechart.cpp \
+ pieslice.cpp \
+ chartsplugin.cpp
symbian {
include($$QT_SOURCE_TREE/examples/symbianpkgrules.pri)
diff --git a/examples/declarative/tutorials/extending/chapter5-plugins/musicplugin.cpp b/examples/declarative/tutorials/extending/chapter6-plugins/chartsplugin.cpp
index 76acf01..5aa2a4b 100644
--- a/examples/declarative/tutorials/extending/chapter5-plugins/musicplugin.cpp
+++ b/examples/declarative/tutorials/extending/chapter6-plugins/chartsplugin.cpp
@@ -37,18 +37,18 @@
** $QT_END_LICENSE$
**
****************************************************************************/
-#include "musicplugin.h"
+#include "chartsplugin.h"
//![0]
-#include "musician.h"
-#include "instrument.h"
+#include "piechart.h"
+#include "pieslice.h"
#include <QtDeclarative/qdeclarative.h>
-void MusicPlugin::registerTypes(const char *uri)
+void ChartsPlugin::registerTypes(const char *uri)
{
- qmlRegisterType<Musician>(uri, 1, 0, "Musician");
- qmlRegisterType<Instrument>(uri, 1, 0, "Instrument");
+ qmlRegisterType<PieChart>(uri, 1, 0, "PieChart");
+ qmlRegisterType<PieSlice>(uri, 1, 0, "PieSlice");
}
-Q_EXPORT_PLUGIN2(musicplugin, MusicPlugin);
+Q_EXPORT_PLUGIN2(chartsplugin, ChartsPlugin);
//![0]
diff --git a/examples/declarative/tutorials/extending/chapter5-plugins/musicplugin.h b/examples/declarative/tutorials/extending/chapter6-plugins/chartsplugin.h
index d6a5392..797d1e7 100644
--- a/examples/declarative/tutorials/extending/chapter5-plugins/musicplugin.h
+++ b/examples/declarative/tutorials/extending/chapter6-plugins/chartsplugin.h
@@ -37,13 +37,13 @@
** $QT_END_LICENSE$
**
****************************************************************************/
-#ifndef MUSICPLUGIN_H
-#define MUSICPLUGIN_H
+#ifndef CHARTSPLUGIN_H
+#define CHARTSPLUGIN_H
//![0]
#include <QtDeclarative/QDeclarativeExtensionPlugin>
-class MusicPlugin : public QDeclarativeExtensionPlugin
+class ChartsPlugin : public QDeclarativeExtensionPlugin
{
Q_OBJECT
public:
diff --git a/examples/declarative/tutorials/extending/chapter4-customPropertyTypes/musician.cpp b/examples/declarative/tutorials/extending/chapter6-plugins/piechart.cpp
index e62efb1..4e6ee5c 100644
--- a/examples/declarative/tutorials/extending/chapter4-customPropertyTypes/musician.cpp
+++ b/examples/declarative/tutorials/extending/chapter6-plugins/piechart.cpp
@@ -37,31 +37,35 @@
** $QT_END_LICENSE$
**
****************************************************************************/
-#include "musician.h"
-#include "instrument.h"
+#include "piechart.h"
+#include "pieslice.h"
-Musician::Musician(QObject *parent)
- : QObject(parent)
+PieChart::PieChart(QDeclarativeItem *parent)
+ : QDeclarativeItem(parent)
{
}
-QString Musician::name() const
+QString PieChart::name() const
{
return m_name;
}
-void Musician::setName(const QString &name)
+void PieChart::setName(const QString &name)
{
m_name = name;
}
-Instrument *Musician::instrument() const
+QDeclarativeListProperty<PieSlice> PieChart::slices()
{
- return m_instrument;
+ return QDeclarativeListProperty<PieSlice>(this, 0, &PieChart::append_slice);
}
-void Musician::setInstrument(Instrument *instrument)
+void PieChart::append_slice(QDeclarativeListProperty<PieSlice> *list, PieSlice *slice)
{
- m_instrument = instrument;
+ PieChart *chart = qobject_cast<PieChart *>(list->object);
+ if (chart) {
+ slice->setParentItem(chart);
+ chart->m_slices.append(slice);
+ }
}
diff --git a/examples/declarative/tutorials/extending/chapter5-plugins/musician.h b/examples/declarative/tutorials/extending/chapter6-plugins/piechart.h
index b920631..d6e4439 100644
--- a/examples/declarative/tutorials/extending/chapter5-plugins/musician.h
+++ b/examples/declarative/tutorials/extending/chapter6-plugins/piechart.h
@@ -37,31 +37,32 @@
** $QT_END_LICENSE$
**
****************************************************************************/
-#ifndef MUSICIAN_H
-#define MUSICIAN_H
+#ifndef PIECHART_H
+#define PIECHART_H
-#include <QObject>
+#include <QDeclarativeItem>
-class Instrument;
+class PieSlice;
-class Musician : public QObject
+class PieChart : public QDeclarativeItem
{
Q_OBJECT
+ Q_PROPERTY(QDeclarativeListProperty<PieSlice> slices READ slices)
Q_PROPERTY(QString name READ name WRITE setName)
- Q_PROPERTY(Instrument* instrument READ instrument WRITE setInstrument)
public:
- Musician(QObject *parent = 0);
+ PieChart(QDeclarativeItem *parent = 0);
QString name() const;
void setName(const QString &name);
- Instrument *instrument() const;
- void setInstrument(Instrument *instrument);
+ QDeclarativeListProperty<PieSlice> slices();
private:
+ static void append_slice(QDeclarativeListProperty<PieSlice> *list, PieSlice *slice);
+
QString m_name;
- Instrument *m_instrument;
+ QList<PieSlice *> m_slices;
};
#endif
diff --git a/examples/declarative/tutorials/extending/chapter6-plugins/pieslice.cpp b/examples/declarative/tutorials/extending/chapter6-plugins/pieslice.cpp
new file mode 100644
index 0000000..65120f5
--- /dev/null
+++ b/examples/declarative/tutorials/extending/chapter6-plugins/pieslice.cpp
@@ -0,0 +1,88 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the documentation of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** You may use this file under the terms of the BSD license as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+** * Redistributions of source code must retain the above copyright
+** notice, this list of conditions and the following disclaimer.
+** * Redistributions in binary form must reproduce the above copyright
+** notice, this list of conditions and the following disclaimer in
+** the documentation and/or other materials provided with the
+** distribution.
+** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
+** the names of its contributors may be used to endorse or promote
+** products derived from this software without specific prior written
+** permission.
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+#include "pieslice.h"
+
+#include <QPainter>
+
+PieSlice::PieSlice(QDeclarativeItem *parent)
+ : QDeclarativeItem(parent)
+{
+ // need to disable this flag to draw inside a QDeclarativeItem
+ setFlag(QGraphicsItem::ItemHasNoContents, false);
+}
+
+QColor PieSlice::color() const
+{
+ return m_color;
+}
+
+void PieSlice::setColor(const QColor &color)
+{
+ m_color = color;
+}
+
+int PieSlice::fromAngle() const
+{
+ return m_fromAngle;
+}
+
+void PieSlice::setFromAngle(int angle)
+{
+ m_fromAngle = angle;
+}
+
+int PieSlice::angleSpan() const
+{
+ return m_angleSpan;
+}
+
+void PieSlice::setAngleSpan(int angle)
+{
+ m_angleSpan = angle;
+}
+
+void PieSlice::paint(QPainter *painter, const QStyleOptionGraphicsItem *, QWidget *)
+{
+ QPen pen(m_color, 2);
+ painter->setPen(pen);
+ painter->setRenderHints(QPainter::Antialiasing, true);
+ painter->drawPie(boundingRect(), m_fromAngle * 16, m_angleSpan * 16);
+}
+
diff --git a/examples/declarative/tutorials/extending/chapter6-plugins/pieslice.h b/examples/declarative/tutorials/extending/chapter6-plugins/pieslice.h
new file mode 100644
index 0000000..a3afd25
--- /dev/null
+++ b/examples/declarative/tutorials/extending/chapter6-plugins/pieslice.h
@@ -0,0 +1,74 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the documentation of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** You may use this file under the terms of the BSD license as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+** * Redistributions of source code must retain the above copyright
+** notice, this list of conditions and the following disclaimer.
+** * Redistributions in binary form must reproduce the above copyright
+** notice, this list of conditions and the following disclaimer in
+** the documentation and/or other materials provided with the
+** distribution.
+** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
+** the names of its contributors may be used to endorse or promote
+** products derived from this software without specific prior written
+** permission.
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+#ifndef PIESLICE_H
+#define PIESLICE_H
+
+#include <QDeclarativeItem>
+#include <QColor>
+
+class PieSlice : public QDeclarativeItem
+{
+ Q_OBJECT
+ Q_PROPERTY(QColor color READ color WRITE setColor)
+ Q_PROPERTY(int fromAngle READ fromAngle WRITE setFromAngle)
+ Q_PROPERTY(int angleSpan READ angleSpan WRITE setAngleSpan)
+
+public:
+ PieSlice(QDeclarativeItem *parent = 0);
+
+ QColor color() const;
+ void setColor(const QColor &color);
+
+ int fromAngle() const;
+ void setFromAngle(int angle);
+
+ int angleSpan() const;
+ void setAngleSpan(int span);
+
+ void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget = 0);
+
+private:
+ QColor m_color;
+ int m_fromAngle;
+ int m_angleSpan;
+};
+
+#endif
+
diff --git a/examples/declarative/tutorials/extending/chapter6-plugins/qmldir b/examples/declarative/tutorials/extending/chapter6-plugins/qmldir
new file mode 100644
index 0000000..a83bf85
--- /dev/null
+++ b/examples/declarative/tutorials/extending/chapter6-plugins/qmldir
@@ -0,0 +1 @@
+plugin chapter6-plugins lib
diff --git a/examples/declarative/tutorials/extending/extending.pro b/examples/declarative/tutorials/extending/extending.pro
index 0c86fed..967473f 100644
--- a/examples/declarative/tutorials/extending/extending.pro
+++ b/examples/declarative/tutorials/extending/extending.pro
@@ -5,5 +5,6 @@ SUBDIRS += \
chapter2-methods \
chapter3-bindings \
chapter4-customPropertyTypes \
- chapter5-plugins
+ chapter5-listproperties \
+ chapter6-plugins
diff --git a/src/declarative/graphicsitems/qdeclarativeitem.cpp b/src/declarative/graphicsitems/qdeclarativeitem.cpp
index 190b22c..ddaeb05 100644
--- a/src/declarative/graphicsitems/qdeclarativeitem.cpp
+++ b/src/declarative/graphicsitems/qdeclarativeitem.cpp
@@ -2503,7 +2503,7 @@ QDeclarativeListProperty<QDeclarativeTransition> QDeclarativeItemPrivate::transi
\qmlproperty bool Item::clip
This property holds whether clipping is enabled.
- if clipping is enabled, an item will clip its own painting, as well
+ If clipping is enabled, an item will clip its own painting, as well
as the painting of its children, to its bounding rectangle.
Non-rectangular clipping regions are not supported for performance reasons.
diff --git a/src/declarative/graphicsitems/qdeclarativelistview.cpp b/src/declarative/graphicsitems/qdeclarativelistview.cpp
index 110c970..fa422fd 100644
--- a/src/declarative/graphicsitems/qdeclarativelistview.cpp
+++ b/src/declarative/graphicsitems/qdeclarativelistview.cpp
@@ -1732,7 +1732,7 @@ void QDeclarativeListView::setHighlight(QDeclarativeComponent *highlight)
highlight is not moved by the view, and any movement must be implemented
by the highlight.
- Here is a highlight with its motion defined by a \l {SpringAniamtion} item:
+ Here is a highlight with its motion defined by a \l {SpringAnimation} item:
\snippet doc/src/snippets/declarative/listview/listview.qml highlightFollowsCurrentItem
diff --git a/src/declarative/graphicsitems/qdeclarativetext.cpp b/src/declarative/graphicsitems/qdeclarativetext.cpp
index 9a281e5..ba4fa21 100644
--- a/src/declarative/graphicsitems/qdeclarativetext.cpp
+++ b/src/declarative/graphicsitems/qdeclarativetext.cpp
@@ -1127,6 +1127,15 @@ int QDeclarativeText::resourcesLoading() const
return d->doc ? d->doc->resourcesLoading() : 0;
}
+/*!
+ \qmlproperty bool Text::clip
+ This property holds whether the text is clipped.
+
+ Note that if the text does not fit in the bounding rectangle it will be abruptly chopped.
+
+ If you want to display potentially long text in a limited space, you probably want to use \c elide instead.
+*/
+
void QDeclarativeText::paint(QPainter *p, const QStyleOptionGraphicsItem *, QWidget *)
{
Q_D(QDeclarativeText);
@@ -1146,13 +1155,10 @@ void QDeclarativeText::paint(QPainter *p, const QStyleOptionGraphicsItem *, QWid
bool needClip = clip() && (d->imgCache.width() > width() ||
d->imgCache.height() > height());
- if (needClip) {
- p->save();
- p->setClipRect(boundingRect(), Qt::IntersectClip);
- }
- p->drawPixmap(br.x(), br.y(), d->imgCache);
if (needClip)
- p->restore();
+ p->drawPixmap(0, 0, width(), height(), d->imgCache, -br.x(), -br.y(), width(), height());
+ else
+ p->drawPixmap(br.x(), br.y(), d->imgCache);
if (d->smooth) {
p->setRenderHint(QPainter::Antialiasing, oldAA);
@@ -1166,7 +1172,7 @@ void QDeclarativeText::paint(QPainter *p, const QStyleOptionGraphicsItem *, QWid
if (needClip) {
p->save();
- p->setClipRect(boundingRect(), Qt::IntersectClip);
+ p->setClipRect(0, 0, width(), height(), Qt::IntersectClip);
}
if (d->richText) {
QAbstractTextDocumentLayout::PaintContext context;
diff --git a/src/declarative/qml/qdeclarativelist.cpp b/src/declarative/qml/qdeclarativelist.cpp
index 7c89672..9598d98 100644
--- a/src/declarative/qml/qdeclarativelist.cpp
+++ b/src/declarative/qml/qdeclarativelist.cpp
@@ -306,7 +306,7 @@ int QDeclarativeListReference::count() const
/*!
\class QDeclarativeListProperty
\since 4.7
-\brief The QDeclarativeListProperty class allows applications to explose list-like
+\brief The QDeclarativeListProperty class allows applications to expose list-like
properties to QML.
QML has many list properties, where more than one object value can be assigned.